Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

6
9
4
8
1
5
3
7
2
8
1
3
7
2
9
4
       
   6
       
       
   6
       
7
5
2
6
3
4
1
9
8
7
6
1
4
8
9
5
2
3
5
9
2
6
3
1
3
6
9
       
    
 
       
    
 
4
8
3
5
2
7
9
1
6
2
4
7
9
3
6
1
5
8
9
       
    
    
       
    
    
1
7
7
3
       
   6
       
       
   6
       
3
6
1
8
4
5
2
7
9

 

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